<div>
  <h1>I can count!</h1>
  1
  2
  3
  4
  5
  6
  7
  8
  9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  <h1>I know my ABCs!</h1>
  <ul>
    <li>a</li>
    <li>b</li>
    <li>c</li>
    <li>d</li>
    <li>e</li>
    <li>f</li>
    <li>g</li>
    <li>h</li>
    <li>i</li>
    <li>j</li>
    <li>k</li>
    <li>l</li>
    <li>m</li>
    <li>n</li>
    <li>o</li>
    <li>p</li>
    <li>q</li>
    <li>r</li>
    <li>s</li>
    <li>t</li>
    <li>u</li>
    <li>v</li>
    <li>w</li>
    <li>x</li>
    <li>y</li>
    <li>z</li>
  </ul>
  <h1>I can catch errors!</h1>
  Oh no! "undefined method `silly' for String:Class" happened!
  <p>
    "false" is:
    false
  </p>
  Even!
  Odd!
  Even!
  Odd!
  Even!
</div>
<div class='foo'>
  <strong>foobar</strong>
</div>
<strong>0</strong>
<strong>1</strong>
<strong>2</strong>
<strong>3</strong>
<strong>4</strong>
<div class='test'>
  <p>boom</p>
</div>
